"backline" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "line"
      },
      "expansion": "back + line",
      "name": "compound"
    }
  ],
  "etymology_text": "back + line",
  "forms": [
    {
      "form": "backlines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backline (plural backlines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "back line"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2021 May 29, David Hytner, “Chelsea win Champions League after Kai Havertz stuns Manchester City”, in The Guardian",
          "text": "Havertz oozed class on the ball, looking every inch the high-end addition, while City knew that they had to find a way past N’Golo Kanté before they got at Chelsea’s miserly backline, which absorbed the loss of Thiago Silva to injury on 38 minutes.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of back line"
      ],
      "id": "en-backline-en-noun-0d9tAmXF",
      "links": [
        [
          "back line",
          "back line#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "backline"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "line"
      },
      "expansion": "back + line",
      "name": "compound"
    }
  ],
  "etymology_text": "back + line",
  "forms": [
    {
      "form": "backlines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backline (plural backlines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "back line"
        }
      ],
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2021 May 29, David Hytner, “Chelsea win Champions League after Kai Havertz stuns Manchester City”, in The Guardian",
          "text": "Havertz oozed class on the ball, looking every inch the high-end addition, while City knew that they had to find a way past N’Golo Kanté before they got at Chelsea’s miserly backline, which absorbed the loss of Thiago Silva to injury on 38 minutes.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of back line"
      ],
      "links": [
        [
          "back line",
          "back line#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "backline"
}